Thunderbird

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

It supports POP (storing mail locally on your hard drive so that it can be accessed without an internet connection), and IMAP. It features excellent mail filter capabilities and management.

Thunderbird has strong support for using multiple accounts and identities, including automated signature features. More Info »

Chat functionality is built in, so you can enjoy real-time conversation with your contacts, right from your favorite messaging application, with multiple supported networks. Thunderbird makes it easy to search through both past conversations and received emails.

Thunderbird can also function as an RSS/Atom feed reader, and has a large selection of add-ons that extend it with calendar support, PGP support, integration with online services and much more.

Thunderbird was added by Mogelfar in
Feb 2009 and the latest update was made in
Aug 2017. The list of alternatives was updated Oct 2017 There is a history of all activites on
Thunderbird in our Activity Log.
It's possible to update the information on Thunderbird or report it as discontinued, duplicated or spam.

Thunderbird is brutal, emClient is clean, neat, well thought out, etc. It works with Exchange, Gmail, etc. Everything in one install. Drop in replacement for Outlook at a fraction of the price for Business.
Guest • Jul 2017
• 1 agrees and 0 disagrees
Disagree Agree

A good Windows alternative if you use 1-2 mailboxes or don't mind paying.3psilon • Sep 2017Disagree Agree

Best solution for people who use Google Calendar. podecre • Mar 2016
• 3 agrees and 3 disagrees
Disagree Agree

SeaMonkey is both a WEB BROWSER and EMAIL CLIENT. It's the successor of Mozilla Application Suite or Netscape Communicator, resp.
Further it includes also a news client program, an HTML editor (SeaMonkey Composer) and an IRC client (ChatZilla).
Guest • Nov 2017
• 3 agrees and 0 disagrees
Disagree Agree

It has all of Thunderbird's features and many more.apostolfaliagas • 2 days agoDisagree Agree

I have used Thunderbird with IMAP for years, but the tiny font problem on Mac is now a dealbreaker, and with my decades of emails and folders, Thunderbird is flailing when fetching ail or moving folders. Apple Mail does what I need it to: manage multiple Gmail accounts, not be too slow, and let me adjust font size. The arrangement of folders/mailboxes in Apple Mail is not as intuitive as Tbird but I can deal with that.
Guest • Jan 2018Disagree Agree

You must download all your emails and there is no option to limit it!
Guest • May 2017
• 1 agrees and 5 disagrees
Disagree Agree

What's in this list?

Alternatives to Thunderbird for Windows, Mac, Linux, iPhone, iPad and more. Filter by license to discover only free or Open Source alternatives. This list contains a total of 71 apps similar to Thunderbird.

Meanwhile, it's july 2015 and the neglect is only getting worse. Basic features like new mail sound and popup don't work and the devs don't give a damn about the bugzilla tickets, their windows debugging server is down so any reports from windows users are unusable (or so I understood) and they don't give a damn, the latest version crashes on startup for no apparent reason and once again they don't give a damn because "it affects a marginal number of users", etc. I'm getting really ****** fed up with them because of what they're doing to tb and ff; it's all going down the drain lately. I wish I could find a proper alternative. Claws mail is nice but lacks easy html email handling, inky is too dumbed-down, etc

It has one of the most transparent configuration dialogs. That caused me to trust Thunderbird more than any other mail program. In addition, it allows a lot of customizations through config and extensions.

AlternativeTo is a free service that helps you find better alternatives to the products you love and hate.

The site is made by Ola and Markus in Sweden, with a lot of help from our friends and colleagues in Italy, Finland, USA, Colombia, Philippines, France and contributors from all over the world. That's right, all the lists of alternatives are crowd-sourced, and that's what makes the data powerful and relevant.